Why did I randomly get 950 V-Bucks?

Excuse me, but I was wondering if you could shed some light on a recent occurrence. I randomly received 950 V-Bucks, and I'm at a loss to understand why. Could it be a mistake? A reward for some sort of achievement that I wasn't aware of? Or perhaps a promotional offer that I inadvertently qualified for? I'm eager to find out the reason behind this unexpected windfall. Could you please help me understand where these V-Bucks came from and if there's anything I should do with them?